Mathematics, 21.04.2021 18:40 noah2o2o

A teacher knows that scores on one of her teata are heavily left skewed, with a mean score of 78 and a standard deviation of 18. She randomly selecta 15 grades and record the mean score. What is the shape of the distribution
of the sample mean for all possible random samples of size 15 from this population?
skewed lett
skewed right
approximately Normal
approximately uniform

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